KUPNY, Józef. Eklezjalność Ruchu Światło–Życie. Silesian Historical and Theological Studies, [S. l.], v. 38, n. 1, p. 105–117, 2006. Disponível em: https://journals.us.edu.pl/index.php/ssht/article/view/17723. Acesso em: 10 nov. 2026.